6533b85ffe1ef96bd12c1ca5

RESEARCH PRODUCT

Cross sections and some features of charm photoproduction at gamma energies of 20-70 GeV

J. SaltJ. LoryY. A. AlexandrovA. ContiM. G. DaglianaMario SanninoE. HigonJasone Garay GarciaF. ViaggiL. BravoV. CastilloM. I. AdamovichG. I. OrlovaG. Diambrini-palazziG. ParriniM. A. SanchisN. A. SalmanovaJ. M. BoltaG. Di CaporiaccoS. TentindoV. G. LarionovaR. GessaroliE. VillarA. MarchionniA. Quareni-vignudelliBianca OsculatiA. LopezM. DameriM. M. ChernyavskyS. G. GerassimovN. G. PeresadkoB. WillotR. NiembroG. TomasiniB. Monteleoni-confortoG. VanderhaegheA. M. CartacciTsai ChuS. P. KharlamovM. I. TretyakovaD. SchuneA. RuizA. ForinoR. Llosa

subject

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyNuclear TheoryFísica01 natural sciencesOmega3. Good healthNuclear physics0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsNucleonNuclear ExperimentParticle Physics - Experiment

description

Abstract We report some results on charm photoproduction at γ energies ranging from 20 to 70 GeV. 36 events with pairs of charmed particles have been found in emulsions. The computed total cross section is (230±57)nb/nucleon. Frequencies of different production channels and some distributions are presented and compared with the predictions from a photon-gluon fusion model with string fragmentation.

yearjournalcountryeditionlanguage
1987-01-01
https://hal.in2p3.fr/in2p3-00006780